Inventor · disambiguated record
Naoki Iwata
Also filed as: IWATA NAOKI
41 granted patents·11 pending applications·1,009 citations·filing 1991–2025
98Inventor score
Top patents by PatentIndex Score
52 records- 0197US5339141ADeveloping device with a developer carrier capable of forming numerous microfields thereonRICOH KK·Filed 1993·Granted Aug 16, 1994·97 cites·45 claims
- 0296US5424814ADeveloping device with microfields formed on developer carrierRICOH KK·Filed 1992·Granted Jun 13, 1995·78 cites·26 claims
- 0395US5502552ADeveloping device for an image forming apparatusRICOH KK·Filed 1994·Granted Mar 26, 1996·74 cites·14 claims
- 0495US5245391ADeveloping device having surface microfields for an image forming apparatusRICOH KK·Filed 1992·Granted Sep 14, 1993·64 cites·13 claims
- 0593US5741616AMethod of developing latent electrostatic images and developer-bearing memberRICOH KK·Filed 1994·Granted Apr 21, 1998·51 cites·12 claims
- 0693US5311263ADeveloping apparatus for image forming equipment using developer carrier for forming microfieldsRICOH KK·Filed 1992·Granted May 10, 1994·56 cites·2 claims
- 0792US11272421B2Data transfer path calculation device and data transfer terminalDENSO CORP·Filed 2020·Granted Mar 8, 2022·4 cites·5 claims
- 0892US5220383ADeveloping device for an image forming apparatus having a large number of microfields formed on a developer carrierRICOH KK·Filed 1992·Granted Jun 15, 1993·50 cites·17 claims
- 0990US5541029AMulticolor image forming method preventing mixing of colorsRICOH KK·Filed 1994·Granted Jul 30, 1996·38 cites·9 claims
- 1090US5474869AToner and method of developingRICOH KK·Filed 1994·Granted Dec 12, 1995·43 cites·4 claims
- 1190US5239344ADeveloping roller having insulating and conductive areasRICOH KK·Filed 1991·Granted Aug 24, 1993·44 cites·28 claims
- 1289US7590376B2Fixing method, a fixing apparatus, an image formation method, and an image formation apparatusRICOH KK·Filed 2006·Granted Sep 15, 2009·11 cites·66 claims
- 1389US5812917ADeveloping apparatusRICOH KK·Filed 1997·Granted Sep 22, 1998·49 cites·15 claims
- 1488US7356298B2Image fixing apparatus using pulsating power for heatingRICOH KK·Filed 2006·Granted Apr 8, 2008·9 cites·14 claims
- 1588US5172169ADeveloper carrier of a developing device and a method of producing the sameRICOH KK·Filed 1991·Granted Dec 15, 1992·37 cites·53 claims
- 1687US5451713ADeveloping apparatus using a developer carrier capable of forming microfieldsRICOH KK·Filed 1994·Granted Sep 19, 1995·30 cites·27 claims
- 1787US5286918ADeveloping apparatus using a developer carrier capable of forming microfields on the surface thereofRICOH KK·Filed 1991·Granted Feb 15, 1994·36 cites·8 claims
- 1884US5809386ADeveloping device for an image forming apparatusRICOH KK·Filed 1996·Granted Sep 15, 1998·40 cites·19 claims
- 1983US5315061ADeveloping apparatus using a developer carrier capable of forming microfieldsRICOH KK·Filed 1992·Granted May 24, 1994·25 cites·21 claims
- 2082US7352987B2Fixing device and image forming apparatus for holding a recording medium by electrostatic forceRICOH KK·Filed 2003·Granted Apr 1, 2008·20 cites·20 claims
- 2180US12146831B2Optical measurement device and optical measurement methodHAMAMATSU PHOTONICS KK·Filed 2021·Granted Nov 19, 2024·1 cites·14 claims
- 2280US5869213AMulticolor image forming method preventing contamination of toner on an image carrier with toner on a developing carrierRICOH KK·Filed 1994·Granted Feb 9, 1999·23 cites·5 claims
- 2377US7295795B2Image forming apparatus and an impurity collecting device associated with registration rollersRICOH KK·Filed 2005·Granted Nov 13, 2007·4 cites·1 claims
- 2475US7046949B2Image fixing apparatus using pulsating power for heatingRICOH KK·Filed 2002·Granted May 16, 2006·13 cites·35 claims
- 2575US7003251B2Image forming method having transfer temperature difference and apparatus for the sameRICOH KK·Filed 2003·Granted Feb 21, 2006·12 cites·21 claims
- 2673US5450172ANondestructive multicolor image forming apparatusRICOH KK·Filed 1994·Granted Sep 12, 1995·20 cites·19 claims
- 2772US5674408ADeveloper carrier capable of forming microfields thereon and method of producing the sameRICOH KK·Filed 1995·Granted Oct 7, 1997·22 cites·24 claims
- 2871US10535454B2Compressed powder core, powders for compressed power core, and method for producing compressed powder coreTOYOTA MOTOR CO LTD·Filed 2016·Granted Jan 14, 2020·1 cites·5 claims
- 2971US6983117B2Image forming apparatus configured for double sided printingRICOH KK·Filed 2003·Granted Jan 3, 2006·12 cites·55 claims
- 3069US12334749B2Power transmitting coil unitTOYOTA MOTOR CO LTD·Filed 2023·Granted Jun 17, 2025·0 cites·9 claims
- 3169US5241357AColor image forming equipment with two developers and a pulse biasRICOH KK·Filed 1991·Granted Aug 31, 1993·18 cites·10 claims
- 3268US12278499B2Noncontact power supply deviceTOYOTA MOTOR CO LTD·Filed 2023·Granted Apr 15, 2025·0 cites·4 claims
- 3368US2025216331A1Optical measurement device and optical measurement methodHAMAMATSU PHOTONICS KK·Filed 2025·Application pending·0 cites
- 3467US5557392AMulticolor image forming apparatus with pulse voltage and DC voltage applied to a developing unitRICOH KK·Filed 1993·Granted Sep 17, 1996·17 cites·13 claims
- 3563US2025016862A1Packet transmission device, packet transmission method, and storage mediumDENSO CORP·Filed 2024·Application pending·0 cites
- 3662US12287288B2Optical measurement device and optical measurement methodHAMAMATSU PHOTONICS KK·Filed 2019·Granted Apr 29, 2025·0 cites·12 claims
- 3762US2025316417A1TransformerTOYOTA JIDOSHOKKI KK·Filed 2025·Application pending·0 cites
- 3857US12333136B2Information processing device, information processing method, and information processing programSONY GROUP CORP·Filed 2021·Granted Jun 17, 2025·0 cites·16 claims
- 3957US2024113560A1Noncontact power supply deviceTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 4057US2024336284A1Transportation service provision system and transportation service provision methodSHIMADZU CORP·Filed 2024·Application pending·0 cites
- 4157US2024096549A1Power transmission coil unitTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 4257US2024097504A1Noncontact power supply apparatusTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 4355US2020185150A1Method for manufacturing powder coreTOYOTA MOTOR CO LTD·Filed 2019·Application pending·0 cites
- 4454US7197269B2Method, system and apparatus for transferring toner images to both sides of a recording mediumRICOH KK·Filed 2003·Granted Mar 27, 2007·5 cites·19 claims
- 4550US10497500B2Powder magnetic core, powder for magnetic cores, and methods of manufacturing themTOYOTA MOTOR CO LTD·Filed 2015·Granted Dec 3, 2019·0 cites·10 claims
- 4648US2023124819A1Optical measurement device and optical measurement methodHAMAMATSU PHOTONICS KK·Filed 2021·Application pending·0 cites
- 4747US7309553B2Oilless tonerRICOH KK·Filed 2002·Granted Dec 18, 2007·3 cites·12 claims
- 4846US11457000B2Information intermediating apparatus, information providing apparatus, and information acquiring apparatusDENSO CORP·Filed 2019·Granted Sep 27, 2022·0 cites·16 claims
- 4945US2018137959A1Dust core and manufacturing method thereforTOYOTA MOTOR CO LTD·Filed 2017·Application pending·0 cites
- 5044US2019221340A1Method of manufacturing pressed powder magnetic coreTOYOTA MOTOR CO LTD·Filed 2019·Application pending·0 cites
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →